Method of making emulsions



- around 30% to 40% of water. In diluting names sra a's Paar oases;

JUDSON A. DE CEW, OF MOUNT VERNON, NEW YORK, ASSIGTN'OR- TO PROCESS ENGI- NEERS, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

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No Drawing.

To all whom it my camera:

Be it known that I, Jonson A. DE Onw, a citizen of the Dominion of Canada, residing in Mount Vernon, in the county of Westchester and State of New i- York, have invented certain new and usefullmprovements in Methods of Making Emulsions, of which the following is a specification.

In the practice of preparing freerosin soaps, it is necessary to dilute the soaps with considerable portion of water before they are added to the beating engine because these soaps are .-not soluble directly in the cold water of the beater and will not dissolve without decomposition in the beater even if the water therein is hot.

The amount of free rosin ina soap which can 'be diluted without decomposition depends upon the method by. which dilution takes place. The more accurately the process of dilution at the critical proportions necessary-and the more intense the rate of solution, the higher the amount of free rosin can In order to pre are high free rosin size. by

further mixed with cold water without decomposition, it is necessary to use definite proportions of water for the first stage of dilution.

Rosin size as it is ordinarily known may contain anywhere from 20% to 50% of water and the average size in use will contain rosin'size, we are only required to deal with rosin soaps with this limit of variation of water content.

When these rosin soapscontain but a small amount of unsapomfied rosin, they can be diluted with various proportions of hot water without decomposition but as the proportion of free rosin increases, the proportion of hot water used must-be more accurately controlled.

If 8 high free ma size is'diluted in -hot water until it contains 15% total solids and it isthenmixed withcold water some se aration of free rosin will take place. In or er to avoid decomposition therefore; it is necesany to dilute the rosin size toa int below 15% total solids before it is furt er d1lutedin cold water. a

demonstrated that any high free rosin 8128, before it can be mixed with cold water without decomposition, must first be Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed November 11,1020. ScriaI'No. 428,398.

diluted with hot water by special means, to

a point where it contains less than 15% total .best proportions of hot water to be used under various circumstances. For example:

A hot rosin size containing a considerable amount of free rosin and containing 20% of water should be diluted with violent agitation with approximately ten parts of hot water to one of size and then mixed with cool water to the right degree of final dilution. The size containing 30% of water and ofsize would be diluted under the same conditions with approximately eight parts of water to one of size. A. size containing' 40% of water could be-diluted with seven parts of water to one of size. A size containing 50% of water could be diluted with six parts of water to one of size;

It is found, therefore, that anapproximate ratio of twelve parts of water to one of dry size or approximately an 8%- solution of.

size in hot water, can be diluted with cold water without separation of free rosin. order to escape the critical stages of decomosition, a hot free rosin size must be diluted mstantaneously from a condition where it contains. 30% to 40% of water to one in which the ratio of dry size to water is approximately one to twelve.

In order to accomplish this satisfactorily, the agitation must he violent and the temperature of water must be above 175 F.

The minimum amount of water which could possibly be used satisfactorily would be five parts of water to one of a 60% size and the maximum amount of water would be around twelve parts of water to one of 60% size. If a size is diluted with hot water as above described, and is not chilled to a stabilizing temperature by the addition of colder water, it will gradually deeom ose lently agitating hot size in contact with hot approximatelywater in the proportion of seven parts of water. to one of size, and then producing further dilution by mixing it with colder water.

2. A method of diluting hot rosin soap containing free rosin which consists in violently agitating hot size in contact with hot water at a temperature above 175 F. in the proportions of approximately seven parts of water to one of size and finally increas- 'n the dilution by discharging the partially di uted liquid into colder water.

i 3. A method for diluting the highest possible free rosin size, without separation of free rosin which consists in mixing instantaneously a hot size, containing from 20 to of water, with hot waterat a temperature about F. to produce approximately an 8% solution and then diluting with colder 26 water; p

In testimony whereof I have aflixed my signature to this specification.

JUDSON AVDE cEw. 

